You were on your own.
Excerpts below from the Nuclear Files Org. 13 February 1950U.S.A., Pacific Ocean- A B-36 which developed serious mechanical difficulties on a simulated combat mission, dropped a nuclear weapon from 8,000 ft. over the Pacific Ocean before crashing. Luckily only the weapon’s explosive material detonated. Nothing is known of attempts to recover the nuclear weapon and presumably it is still in the ocean. (The Defence … Read More Nuclear incidents in the 1950s